Qfyilyi

I have problem in seting visibility of Progressbar in a AsyncTask

this is my code:

public class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {



ImageView IV;

FullImageActivity MA;

ProgressBar lp1;



public DownloadImageTask(ImageView IV,

        FullImageActivity fullImageActivity) {

    this.IV = IV;

    this.MA = fullImageActivity;

    lp1 = (ProgressBar) MA.findViewById(R.id.progressBar1);

}



protected Bitmap doInBackground(String... p) {

    String url = "...";

    Bitmap BI = null;

    try {

        InputStream in = new java.net.URL(url).openStream();

        BI = BitmapFactory.decodeStream(in);

    } catch (Exception e) {

        Log.e("Error", e.getMessage());

        e.printStackTrace();

    }

    return BI;

}



@Override

protected void onPreExecute() {

    lp1.setVisibility(1);

    super.onPreExecute();

}



protected void onPostExecute(Bitmap result) {

    IV.setImageBitmap(result);

    lp1.setVisibility(0);

}

}

and my XML

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:id="@+id/RelativeLayout1"

android:layout_width="wrap_content"

android:layout_height="wrap_content" >



<ImageView

    android:id="@+id/full_image_view"

    android:layout_width="fill_parent"

    android:layout_height="match_parent" />



<ProgressBar

    android:id="@+id/progressBar1"

    style="?android:attr/progressBarStyleLarge"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:layout_centerInParent="true" />



</RelativeLayout>

when i use

 lp1.setVisibility(0);

or

 lp1.setVisibility(ProgressBar.GONE); 

or

lp1.setVisibility(View.GONE);

or

lp1.setVisibility(View.INVISIBLE);

my progressBar still visible

 lp1.setVisibility(0);

0 is the value for View.VISIBILE

Here the docs